The Bolt,ribbed Shoulder, cataloged under National Stock Number 5306-00-226-9276, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is General Motors Llc Dba General Motors Llc. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-226-9276 |
| Primary Part Number | 3665386 |
| Item Name | Bolt,ribbed Shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | General Motors Llc Dba General Motors Llc |
| Status | ACTIVE |
| Head Height | 0.307 INCHES MINIMUM AND 0.317 INCHES MAXIMUM IN |
| Fastener Length | 2.125 INCHES MINIMUM AND 2.141 INCHES MAXIMUM IN |
| Shoulder Length | 0.693 INCHES MINIMUM AND 0.703 INCHES MAXIMUM FIRST SHOULDER IN |
| Distance From Largest Diameter of Bearing Surface of Head to Ribs | 0.078 INCHES MAXIMUM IN |
| Shoulder Diameter | 0.838 INCHES MINIMUM AND 0.843 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 1.062 INCHES MINIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Rib Length | 0.046 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.750 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Rib Major Diameter | 0.865 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 16 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.875 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 3665386 PRIMARY | General Motors Llc Dba General Motors Llc (USA) |
| 8380901 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 3665386 | 5/9 Secondary reference General Motors Corp |
| 3665386 | 5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept |
NSN 5306-00-226-9276 is a Bolt,ribbed Shoulder, manufactured by General Motors Llc Dba General Motors Llc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-226-9276 has 2 manufacturer part numbers on file: 3665386 (General Motors Llc Dba General Motors Llc), 8380901 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 3665386: Head Height: 0.307 INCHES MINIMUM AND 0.317 INCHES MAXIMUM IN; Fastener Length: 2.125 INCHES MINIMUM AND 2.141 INCHES MAXIMUM IN; Shoulder Length: 0.693 INCHES MINIMUM AND 0.703 INCHES MAXIMUM FIRST SHOULDER IN; Distance From Largest Diameter of Bearing Surface of Head to Ribs: 0.078 INCHES MAXIMUM IN. 17 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.